From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:38718 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751677AbdCROMg (ORCPT ); Sat, 18 Mar 2017 10:12:36 -0400 Subject: Patch "geneve: lock RCU on TX path" has been added to the 4.10-stable tree To: jakub.kicinski@netronome.com, davem@davemloft.net, gregkh@linuxfoundation.org Cc: , From: Date: Sat, 18 Mar 2017 22:05:34 +0800 Message-ID: <1489845934248147@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled geneve: lock RCU on TX path to the 4.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: geneve-lock-rcu-on-tx-path.patch and it can be found in the queue-4.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From foo@baz Sat Mar 18 22:03:53 CST 2017 From: Jakub Kicinski Date: Fri, 24 Feb 2017 11:43:37 -0800 Subject: geneve: lock RCU on TX path From: Jakub Kicinski [ Upstream commit a717e3f740803cc88bd5c9a70c93504f6a368663 ] There is no guarantees that callers of the TX path will hold the RCU lock. Grab it explicitly. Fixes: fceb9c3e3825 ("geneve: avoid using stale geneve socket.") Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/geneve.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -881,12 +881,14 @@ static netdev_tx_t geneve_xmit(struct sk info = &geneve->info; } + rcu_read_lock(); #if IS_ENABLED(CONFIG_IPV6) if (info->mode & IP_TUNNEL_INFO_IPV6) err = geneve6_xmit_skb(skb, dev, geneve, info); else #endif err = geneve_xmit_skb(skb, dev, geneve, info); + rcu_read_unlock(); if (likely(!err)) return NETDEV_TX_OK; Patches currently in stable-queue which might be from jakub.kicinski@netronome.com are queue-4.10/vxlan-lock-rcu-on-tx-path.patch queue-4.10/geneve-lock-rcu-on-tx-path.patch